Window-screen



(No Model.) 2 Sheets--Sheet l.

H. O. PARK, 0. M. EVANS, G. E. TURNER 8:; C. E. MORRIS.

' WINDOW SCREEN.

No, 497,891. Patented May 23, 1893.

(No Model.) 2 Sheets-Sheet 2.

H. 0. PARK, 0. M. EVANS, C. E. TURNER & 0. E. MORRIS. WINDOW SCREEN.

No. 497,891. Patented May 23, 1893.-

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UNITED "STATES PATENT OFFICE.

HOWARD C. PARK, OLIVER M. EVANS, CLARENCE E. TURNER, AND CHARLES E.MORRIS, CF COLUMBUS, OHIO.

WINDOW-SCREEN.

SFECIFIGATION forming part of Letters Patent No. 497,891, dated May 23,1893. Application filed November '7, 1892. Serial No. 451,148. (Nomodel.)

particular relation to the improvement of the screen shown in LettersPatent No. 418,126,

dated December 24, 1889.

The objects of our invention are to provide I a screen of the aboveclass of superior construction and arrangement of parts which willgreatly facilitate the operation of the same; to provide superior meansfor supporting the roller casing within a window-way and in so doingobviate the necessity of forming a direct connection between said rollercasing and the window frame-work; to provide improved guidestrips; toprovide improved means for increasing the tension of the roller spring;to construct the screen of a durable and flexible material and toproduce other improvements which will be more specifically pointed outhereinafter. These objects We accomplish in the manner illustrated intheaccompanying drawings, in which- 5 Figure 1 is an inner face view of awindowframe having our improved screen therein, the lower sash beingpartly raised. Fig. 2 is a vertical sectional view on line w as ofFig. 1. Fig. 3 is an enlarged sectional View of the roller and case anda portion of one of the guide-strips as viewed on line y y of Fig. 1

1 and shown removed from the window-frame. Fig. 4 is a sectional view ofthe roller casing taken on line a a of Fig. 7. Fig. 5 is a View inelevation of a portion of the roller casing. Fig. 6 is a view inperspective of a portion of one of the side strips. Fig. 7 is a partiallongitudinal section and elevation of the roller casing showing thescreen and roller therein.

Fig. 8 is an end .view of one of the roller casing caps. Fig. 9 is aviewin perspective of the lower end of one of the guide strips, and Fig. 10is a view in elevation of a telescoping roller. 1

Similar letters refer to similar parts through- 5 5 out the severalviews.

a represents a roller which as prescribed for said former patent abovementioned is spring-actuated or provided with an internal spring in oneend thereof. As shown in Fig. 6c 9 of the drawings, we form this rollerof two telescoping or jointedly connected sections a 0. said sectionsbeing adapted to close together or to be drawn outward in the usual orany well-known manner to increase or decrease the length thereof.

a represents the squared pin which as is usual projects from the end ofthe roller and is connected with said internal spring, the

base of said pin being provided with a ratcho et-disk, (indicated at w).The roller thus formed has secured theretoin any desirable manner theinner end of a flexible wire screen such as is indicated at b. Inproducing this screen we employ fine wire sufliciently an nealed ortempered to decrease it brittleness and increase its flexibility to suchextent as to admit of its beingreadily wound or unwound Without injurythereto. The outer and otherwise free end of this screen, is as shown inthe drawings provided with a trans verse binding of thin sheet metal,(indicated at b) and through said binding we form at desired intervalsopenings 12 substantially of the inverted keyhole shape, shown.

We inclose the roller above described and the wound portion of thescreen thereon with a substantially tubular casing 01 preferably ofsheet metal or tin, said casing being formed in three telescopingsections 01', d and (i the 0 central section d being adapted to fit andslide within the end-sections d (1 In the casing thus formed we producethroughout the length thereof, a slotted opening (indicated at d saidopening being continuous throughout the several sections thereof. Theouter sections (1 d have the edges of their slotted opening bent outwardto form lips e,

the cover-section and which is provided with in one of these cap ends isformed a bearing while the edges of the slotted opening of the centralsection are provided with similar lips which are doubled under resultingin the formation of a guide-way e within which the lips act the endsections may slide. As shown in Fig. 7 of the drawings, we may however,cause the middle section to slide over the ends of the outer sections ofthe casing.

Each end of the roller casing is provided with a cap f which fits overthe outer end of a slotted opening f, the edges of which are overlappedby the end portions of the lips 6.

opening for the usual rounded and fixed roller pin and in the remainingcap arounded opening for the reception of the roller pin a and itsratchet disk a 9 represents the guide-strips which are adapted ashereinafter described to be supported at opposite points in the innersides of the window frame adjacent to the sash. In forming our improvedguide-strip, we produce from a piece of sheet metal or other suitablesubstance a channel strip, said strip being so bent as to form avertical channel or guideway g between two parallel outwardly projecting lips 9 The base or rear side of each of these strips is extendedlaterally to form an attaching flange, such as is shown at 9 saidattaching flange being provided with suitable tack openings 9 The lowerend of each of the guide-strips has as shown in the drawings, its outerlip orwing 9 provided with a transverse slotted opening These guide- 7strips are secured to the inner side of the ver- 7 1 tical portions of"a window-frame h, the lower ends thereof being adjacent to the upperside of the sill h; In forming this connection, we employ suitable tacksor screws which pass through the attaching flange openings 9 and enterthe window-frame.

The method of attaching our improved caspressing the out-turned edges orlipse of'the outer ends of the outer sections toward each other andinserting said lip portions within the slotted openings 9 of the sidestrips and then allowing said strip portions to spring outward intoengagement with the rear side of said side strip plate. In this mannerit will be seen that a connection will be formed between the side stripsand roller casing which will prevent any tendency of said casing torotate or-lto work out of its place and at the same time to form aconnection which will obviate the necessity of fastens ing the casing tothe window sill or frame. The roller casing having thus been secured oropenings Z2 over the suitable projections on said window sash. Thisconnection having been made, it is obvious that the raising of thewindow sash must result in the screen following said sash or being drawnupward therewith. This taking up of the screen must result as willreadily be seen in completely closing the opening formed by raising thewindow. In the upward movement of said screen thus produced it will beseen that the lateral edges of the screen will be inclosed within thechannels of the side strips g, thus providing against any outlet oropening for the entrance of flies at the side of the screen.

In order to facilitate the operation of tightening or increasing thetension of the spring of the roller and retaining the same undertension, we pivot on the outer side or end of that cap f through whichpasses the squared roller pin a a pawl m, said pawl being adapted toengage with the teeth of the ratchet disk a in such manner as to preventthe backward rotation of the pin a The means of tightening said springconsist in fitting asuitable key over the projecting pin a and turningthe same until the spring is placed under tension in the usual manner.

It is evident that our improved roller casing maybe adjusted to anydesiredlength by telescoping the sections thereof to a greater or lessdegree, thus admitting of the use of said roller casing in windows ofvarying widths. The construction of our improved guide-strips is such asto provide a simple and 1 fore mentioned, it is. evident that our imtheroller and its casing upon the upper portion of said window-frame andsecuring the i outer end of the screen to said upper sash. ingtothewmdow frame or seat consists in In the class of windowscreens towhich our 1 invention belongs, a cloth or thread netting has beenordinarily employed in the construction of the screen, but practicalusehas demonstrated that such material will not without difficulty andwithout injury thereto.

It will be observed that our improved screen 1 is of a simple andreliable construction and can be produced atareasonablecost ofmanufacture.

in its place in the window, the outer bound Having now fully describedour invention, what we claim, and desire to secure by Letters Patent,is-

In a window screen, the combination with 1 a spring actuated andadjustable roller as described, a wire screen wound thereon and securedthereto, a casing for said roller said casing formed as described oftelescoping sections are adapted to engage, substantially sections,colnrgunicating slotted openings as and for the purpose specified.throughout sai ease sections and edge lips as described thereon, caps ffitting on said 5 case sections, and slotted openings in said CLARENCE Ei R caps, the edges of which engage as described CHARLES E MORRIS withsaid case section lips, of the guide strips 9 having channeled andflanged portions as In presence of-- described, openings g in each ofsaid guide 0. C. SHEPHERD, [0 strips with which the edge lips of thecase E. E. BRAGG.

